Electronic circuit breaker operation
If the controller detects a short circuit, it will automatically
turn off power to the shorted Zone’s automatic valve.
The display will alternately flash and
while showing the shorted Zone’s number. The controller
will continue to automatically water all other Zones under
the programmed watering cycles, while the display con-
tinues flashing the Zone number with the short circuit.
To return the controller and display to normal operating
mode after repairing the short, press CLEAR/RAIN.
Battery back-up
In the event of a power failure, a battery back-up system
will maintain your programmed watering schedule in
memory for up to 24 hours. It will not operate the clock
to keep the correct time of day.
Voltage Specifications
Input
120 VAC
60 HERTZ
15 WATTS
output
24 VAC
1 AMP
International Units
250 VAC
50 HERTZ
15 WATTS
Malfunctions aren’t common, but when they
occur, they’re often due to one of these
frequently overlooked causes.
Problem Possible Cause
18
19
One or more valves
do not water
and a Zone number
are alternately flashing
on display
Clock won’t keep correct time
and/or controller won ‘t retain
programming
Zones turn on when they’re
NOT programmed to start
Clock has correct time but
no valves will turn on
One Zone won’t shut off
electrically
All Zones programmed for a
certain day water more than
once that day
1.
2.
3.
4.
1.
2.
3.
1.
2.
3.
4.
1.
1
2
3
1
2
1
Faulty solenoid
Poor wire connection/common
Possible break in wire
Valve flow stem screwed down too far
Faulty solenoid
Poor or shorted wire connection
All unconnected Zones are not
programmed to OFF mode.
No battery
Weak or bad battery
Controller on circuit controlled by a switch
Controller on same circuit as high power user
(refrigerator, air conditioner, garage door opener, etc.)
Total combined run times have overlapped
with another start time
Controller is in RAIN mode
The common wire is not connected
Valve flow stem is screwed down too far
Faulty valve
Particles of dirt or debris are stuck in valve
More than one start time is programmed
WARNING: 00 not link two or more
controllers using a common transformer
or common wire.
For additional assistance call our Customer Service Hot-line (800) 231-5117.
